New take at implementing autofill using the editor client API

webkit/glue/autocomplete_input_listener_unittest.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-//
-// The DomAutocompleteTests in this file are responsible for ensuring the
-// abstract dom autocomplete framework is correctly responding to events and
-// delegating to appropriate places. This means concrete implementations should
-// focus only on testing the code actually written for that implementation and
-// those tests should be completely decoupled from WebCore::Event.
-
-#include <string>
-
-#include "config.h"
-
-#include "base/compiler_specific.h"
-
-MSVC_PUSH_WARNING_LEVEL(0);
-#include "HTMLInputElement.h"
-#include "HTMLFormElement.h"
-#include "Document.h"
-#include "Frame.h"
-#include "Editor.h"
-#include "EventNames.h"
-#include "Event.h"
-#include "EventListener.h"
-#include <wtf/Threading.h>
-MSVC_POP_WARNING();
-
-#undef LOG
-
-#include "webkit/glue/autocomplete_input_listener.h"
-#include "webkit/glue/webframe.h"
-#include "webkit/glue/webframe_impl.h"
-#include "webkit/glue/webview.h"
-#include "webkit/tools/test_shell/test_shell_test.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using WebCore::Event;
-
-namespace webkit_glue {
-
-class TestAutocompleteBodyListener : public AutocompleteBodyListener {
- public:
-  TestAutocompleteBodyListener() {
-  }
-
-  void SetCaretAtEnd(WebCore::HTMLInputElement* element, bool value) {
-    std::vector<WebCore::HTMLInputElement*>::iterator iter =
-        std::find(caret_at_end_elements_.begin(), caret_at_end_elements_.end(),
-                  element);
-    if (value) {
-      if (iter == caret_at_end_elements_.end())
-        caret_at_end_elements_.push_back(element);
-    } else {
-      if (iter != caret_at_end_elements_.end())
-        caret_at_end_elements_.erase(iter);
-    }
-  }
-
-  void ResetTestState() {
-    caret_at_end_elements_.clear();
-  }
-
- protected:
-  // AutocompleteBodyListener override.
-  virtual bool IsCaretAtEndOfText(WebCore::HTMLInputElement* element,
-                                  size_t input_length,
-                                  size_t previous_length) const {
-    return std::find(caret_at_end_elements_.begin(), 
-                     caret_at_end_elements_.end(),
-                     element) != caret_at_end_elements_.end();
-  }
-
- private:
-   // List of elements for which the caret is at the end of the text.
-   std::vector<WebCore::HTMLInputElement*> caret_at_end_elements_;
-};
-
-class TestAutocompleteInputListener : public AutocompleteInputListener {
- public:
-  TestAutocompleteInputListener()
-      : blurred_(false),
-        did_request_inline_autocomplete_(false) {
-  }
-
-  void ResetTestState() {
-    blurred_ = false;
-    did_request_inline_autocomplete_ = false;
-  }
-
-  bool blurred() const { return blurred_; }
-  bool did_request_inline_autocomplete() const {
-    return did_request_inline_autocomplete_;
-  }
-
-  virtual void OnBlur(WebCore::HTMLInputElement* element,
-                      const std::wstring& user_input) {
-    blurred_ = true;
-  }
-  virtual void OnInlineAutocompleteNeeded(WebCore::HTMLInputElement* element,
-                                          const std::wstring& user_input) {
-    did_request_inline_autocomplete_ = true;
-  }
-
- private:
-  bool blurred_;
-  bool did_request_inline_autocomplete_;
-};
-
-namespace {
-
-class DomAutocompleteTests : public TestShellTest {
- public:
-  virtual void SetUp() {
-    TestShellTest::SetUp();
-    // We need a document in order to create HTMLInputElements.
-    WebView* view = test_shell_->webView();
-    WebFrameImpl* frame = static_cast<WebFrameImpl*>(view->GetMainFrame());
-    document_ = frame->frame()->document();
-  }
-
-  void FireAndHandleInputEvent(AutocompleteBodyListener* listener,
-                               WebCore::HTMLInputElement* element) {
-    RefPtr<Event> event(Event::create(WebCore::eventNames().inputEvent,
-                                      false, false));
-    event->setTarget(element);
-    listener->handleEvent(event.get(), false);
-  }
-
-  void SimulateTypedInput(TestAutocompleteBodyListener* listener,
-                          WebCore::HTMLInputElement* element,
-                          const std::wstring& new_input,
-                          bool caret_at_end) {
-      element->setValue(StdWStringToString(new_input));
-      listener->SetCaretAtEnd(element, caret_at_end);
-      FireAndHandleInputEvent(listener, element);
-  }
-
-  WebCore::Document* document_;
-};
-}  // namespace
-
-TEST_F(DomAutocompleteTests, OnBlur) {
-  RefPtr<WebCore::HTMLInputElement> ignored_element =
-      new WebCore::HTMLInputElement(document_);
-  RefPtr<WebCore::HTMLInputElement> listened_element =
-      new WebCore::HTMLInputElement(document_);
-  RefPtr<TestAutocompleteBodyListener> body_listener =
-      new TestAutocompleteBodyListener;
-  TestAutocompleteInputListener* listener = new TestAutocompleteInputListener();
-  // body_listener takes ownership of the listener.
-  body_listener->AddInputListener(listened_element.get(), listener);
-
-  // Simulate a blur event to the element we are not listening to.
-  // Our listener should not be notified.
-  RefPtr<Event> event(Event::create(WebCore::eventNames().DOMFocusOutEvent,
-                                    false, false));
-  event->setTarget(ignored_element.get());
-  body_listener->handleEvent(event.get(), false);
-  EXPECT_FALSE(listener->blurred());
-  
-  // Now simulate the event on the input element we are listening to.
-  event->setTarget(listened_element.get());
-  body_listener->handleEvent(event.get(), false);
-  EXPECT_TRUE(listener->blurred());
-}
-
-TEST_F(DomAutocompleteTests, InlineAutocompleteTriggeredByInputEvent) {
-  RefPtr<WebCore::HTMLInputElement> ignored_element =
-      new WebCore::HTMLInputElement(document_);
-  RefPtr<WebCore::HTMLInputElement> listened_element =
-      new WebCore::HTMLInputElement(document_);
-  RefPtr<TestAutocompleteBodyListener> body_listener =
-      new TestAutocompleteBodyListener;
-
-  TestAutocompleteInputListener* listener = new TestAutocompleteInputListener();
-  body_listener->AddInputListener(listened_element.get(), listener);
-
-  // Simulate an inputEvent by setting the value and artificially firing evt.
-  // The user typed 'g'.
-  SimulateTypedInput(body_listener.get(), ignored_element.get(), L"g", true);
-  EXPECT_FALSE(listener->did_request_inline_autocomplete());
-  SimulateTypedInput(body_listener.get(), listened_element.get(), L"g", true);
-  EXPECT_TRUE(listener->did_request_inline_autocomplete());
-}
-
-TEST_F(DomAutocompleteTests, InlineAutocompleteHeuristics) {
-  RefPtr<WebCore::HTMLInputElement> input_element =
-      new WebCore::HTMLInputElement(document_);
-  RefPtr<TestAutocompleteBodyListener> body_listener =
-      new TestAutocompleteBodyListener();
-
-  TestAutocompleteInputListener* listener = new TestAutocompleteInputListener();
-  body_listener->AddInputListener(input_element.get(), listener);
-
-  // Simulate a user entering some text, and then backspacing to remove
-  // a character.
-  SimulateTypedInput(body_listener.get(), input_element.get(), L"g", true);
-  EXPECT_TRUE(listener->did_request_inline_autocomplete());
-  listener->ResetTestState();
-  body_listener->ResetTestState();
-
-  SimulateTypedInput(body_listener.get(), input_element.get(), L"go", true);
-  EXPECT_TRUE(listener->did_request_inline_autocomplete());
-  listener->ResetTestState();
-  body_listener->ResetTestState();
-
-  SimulateTypedInput(body_listener.get(), input_element.get(), L"g", true);
-  EXPECT_FALSE(listener->did_request_inline_autocomplete());
-  listener->ResetTestState();
-  body_listener->ResetTestState();
-
-  // Now simulate the user moving the cursor to a position other than the end,
-  // and adding text.
-  SimulateTypedInput(body_listener.get(), input_element.get(), L"og", false);
-  EXPECT_FALSE(listener->did_request_inline_autocomplete());
-  listener->ResetTestState();
-  body_listener->ResetTestState();
-
-  // Test that same input doesn't trigger autocomplete.
-  SimulateTypedInput(body_listener.get(), input_element.get(), L"og", true);
-  EXPECT_FALSE(listener->did_request_inline_autocomplete());
-  listener->ResetTestState();
-  body_listener->ResetTestState();
-}
-
-}  // webkit_glue